Problem with nuisance covariate regression

Submitted by Dina Dajani on

Hello,

When I regress nuisance covariates (linear trends, Friston 24, and WM & CSF with 99% subject specific maps) the resulting image is completely blank with no brain. When I do this same nuisance covaraite regression but instead choose the WM & CSF a priori SPM maps, it works fine and I am able to finish the preprocessing correctly.  But, for my analyses I would prefer to use the subject-specific maps.  What may be going wrong here?  Thank you for any advice.

 

Best

Dina Dajani

Hello,

 

Which masks are used in the regression for WM & CSF?  There are the (1) warped masks, and two types of segmentation masks: (2) functional space and (3) thresholded maps

 

Thank you,

Dina Dajani

YAN Chao-Gan

Thu, 10/09/2014 - 15:10

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How did you specified nuisance regression. Please paste a snapshot here.
Best,

Chao-Gan

On Thu, Oct 9, 2014 at 11:00 AM, The R-fMRI Network <rfmri.org@gmail.com> wrote:
[To post a comment, please reply to rfmri.org@gmail.com ABOVE this line]

Commented by Dina Dajani (Dina Dajani)

Hello,

 

Which masks are used in the regression for WM & CSF?  There are the (1) warped masks, and two types of segmentation masks: (2) functional space and (3) thresholded maps

 

Thank you,

Dina Dajani


Online version of this post: http://rfmri.org/comment/3338#comment-3338


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Dina Dajani

Mon, 10/06/2014 - 14:59

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I have already checked my WM and CSF maps and masks and they look fine.  

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